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Mixing counter flow and parallel flow

JohnMC Member Posts: 2
Have a boiler replacement job. Adding new drop header etc. Gave quote, got job found one of two mains is counter-flow. Other main is parallel flow.

Can these two mains work in harmony?


  • Jamie Hall
    Jamie Hall Member Posts: 21,540
    sized and pitched

    correctly, don't see why not.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • Unknown
    edited October 2009
    Counterflow System

    Here a picture I saved from last year of a excellent counterflow job done by Steve Gronski. Note the drip setup on the counterflow mains and the 45 degree entry to the header!  Beautiful work!  I thought maybe  it might be of help to you in planning your job.

    - Rod
  • JohnMC
    JohnMC Member Posts: 2
    Nice idea

    Thanks for the idea, If I use a drip tee and drip leg back to the wet return of the other main, I should still be able to use the drop header I planned on and not have to drop into the counter flow main from the header.

    Jamie, thank you as well

    If anyone else has any thoughts, I would love to hear them
  • Steamhead
    Steamhead Member Posts: 16,261
    I'll second Rod and Jamie

    that's how I'd do it. 
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
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